Since all of reality is based in emotion, the only truth you ever experience is that of emotion. Ergo, wondering if something is true thus becomes nonsensical, because in doing so, the truth is then defined as the emotional state that is produced from the asking of such a question.
Therefore, only the emotional state produced by a thought is the truth and there is no broader truth since reality will match that emotional state and set into motion the attraction of matching thoughts that produce the same emotional state. Thus, the truth that is the emotional state produced by a thought as you think it is the only truth, and the more desirable is such emotion, the more desirable is the truth being created.